What is a common consequence of using smokeless powder in a muzzleloader?

Using smokeless powder in a muzzleloader can lead to severe damage to the firearm due to the different combustion characteristics and pressures involved compared to black powder, which is what muzzleloaders are designed to use. Smokeless powder generates significantly higher pressures than black powder when it ignites, which can exceed the design limits of older muzzleloader barrels. This can cause catastrophic failure, such as barrel explosions, leading to injury to the shooter and damage to the firearm.

The other options may seem appealing in terms of potential performance enhancements; however, they fail to account for the critical safety and integrity issues that arise when using the incorrect type of propellant in a muzzleloader. Understanding the specific requirements and limitations of your firearm is essential for safe and effective operation.